Improved extension-crib



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SANFORD S. BURR, OF DEDHAM, MASSACHUSETTS.

Letters Patent No. 95,318, dated September 28, 1.869.`

IMPROVED EXTENSION-CRIB.

The Schedule referred to in these Letters Patent and making part of thesame.

the accompanying drawings, making lpart of this specification, and inwhich- Ligure l is a perspective representation of vmy in vention in acontracted condition, and

Figure 2, a side rcpresentationof it in an extended state,

Figure 3 being a transverse and vertical section of such invention.

The invention comprising the subject-matter of this patent has for itsobject a childs sleeping-crib; and relates to the construction of suoliarticles, whereby they may be varied in length at pleasure from the sizerequisite for the smallest child, to thatof suficient capacity. tocontain an adult, the` bed-bottom or foundation being so applied to thecrib as to allow its contraction and expansion automatically.

The invention consists in unitingtwo suitably-formed endlportions orframes, whose united length whenclosed shall constitute the crib in itsshortest condition, lby means of longitudinal side rails tongued andgrooved in such manner that while confining the end portions of the cribtogether, they permit of their being forcedapart to the desired extent,a series of slats, or sacking, or other-suitable bed foundation,

being applied in manner to accommodate itself to variations in length ofthe crib, as hereinafter explained.

In the drawings,.to which allusion `has before been` made asaccompanying this specification, and which illustrate my invention, a adenote two upright frames orstandards, provided with short.side rails,b. b b b', projecting inwardly in such mannerthat when in a closedstate, their adjacent ends shall abut together and form a continuousside rail of the crib.

To the inner faces of these side rails, or to any proper part of thesame, I alx'two series of horizontal rails, c c c c, such rails beingtongued and grooved, as shown at cl, in such manner as to maintain thehori zontal and vertical parallelism of the end frames and their rails,and at the same time permit of their approaching or receding from eachother.

The bed-bottom adopted in the present instance consists of a series ofparallel horizontal slats, e e e,

resting upon the top of the sliding rails, and confined' together inproper manner by cords ff, or their equivalents, these cords being ofsuch a length as to corre'- spond to the extreme length of `vthe crib orbed when extended .to its fullest length.

In practise, however, various substitutes for the yslats may be adoptedwithout aiecting thc characteristie feature of my invention.

The operation of the crib will readily manifest itself to intelligentpersons, as'by forcing apart its end portions its length` may beprolonged to any extent from that necessary for an infant to thatsuitable for a bed for adults, the transformation being accomplishedeasily and expeditiously. f

Among the advantages to be found resulting from the use of my invention,as above described, may be enumerated the following:

First, when in use as asleeping-place for infants or young children, itis reduced to such contracted bulk as to occupy nmch 'less space in anapartment than any analogous article heretofore made.

Second, while in a closed state, occupying -very little space, theabove-described crib may be varied in length according to the growth ofthe child, or extended to suoli a length as to form a comfortable bcdfor adults, thus producing an article of furniture which shall alikeserve the purposes of a perfect crib for children of any age, or o f abed for grown people, at a small cost.

Having thus described the natureof my invention, as welll as its objectsand advantages,

What I claix'n to be novel and original with myself, and desire tosecure by Letters Patent of the United States, is as follows C' lalms. i

1. I claim a childs crib, in whichv the divided cribframe proper iscombined with the tongued and grooved side rails c c', substantially asand for the purposes herein described.

2. I claim in a crib or beflstcad, made as herein explained, combiningtherewith the bed-bottom, substantially in the manner described, so thatthe bed-bottom shall automatically accommodate itself to the variationsin length of such crib or bed, for. the purposes essentially herein setforth.

SANFORD S. BURR'.

Witnesses:

FRED. CURTIS, EDWARD GRIFFITH.

